ppf/new: Add logging support to util.py. Fixes due to tests.

diff --git a/ppf/new/util.py b/ppf/new/util.py
index 5068e02..dbf7e68 100644 (file)
--- a/ppf/new/util.py
+++ b/ppf/new/util.py
@@ -4,10 +4,35 @@ Utility classes.
 2011, Razvan Deaconescu, razvan.deaconescu@cs.pub.ro
 """
 
+import logging
+
+#
+# Logging code heavily inspired by Logging HOWTO documentation:
+#     http://docs.python.org/dev/howto/logging.html#configuring-logging
+#
+
+# Create logger; default logging level is DEBUG.
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.DEBUG)
+
+# Create console handler and set level to ERROR.
+ch = logging.StreamHandler()
+ch.setLevel(logging.DEBUG)
+
+# Create formatter.
+formatter = logging.Formatter('%(filename)s:%(lineno)s - %(levelname)s: %(message)s')
+
+# Add formatter to console handler.
+ch.setFormatter(formatter)
+
+# Add console handler to logger.
+logger.addHandler(ch)
+
+
 class LiveLogStatus(object):
     """
     Status information regarding live log processing. Stored in the
-    '.lstatus' file.
+    '.status' file.
     """
 
     def __init__(self, position=0):
@@ -20,14 +45,14 @@ class LiveLogFile(object):
     by a log file.
     A live status file is used for storing status information (such as
     current position in log file processing). The live status file name is the
-    log file name with ".lstatus" appended to it.
+    log file name with ".status" appended to it.
     """
 
     def __init__(self, log_file_name):
         self.log_file_name = log_file_name
-        self.status_file_name = log_file_name + ".lstatus"
+        self.status_file_name = log_file_name + ".status"
 
-        self.log_file = open(self.log_file_name, "tt")
+        self.log_file = open(self.log_file_name, "rt")
         self.status_file = open(self.status_file_name, "ab+")
         self.status_file.seek(0)
 
@@ -45,15 +70,18 @@ class LiveLogFile(object):
         line = self.status_file.readline()
         try:
             position = int(line)
-        except TypeError, e:
+        except ValueError, e:
             position = 0
+            logger.debug("Invalid live. Use position = 0.")
         self.status = LiveLogStatus(position)
 
         self.status_file.seek(0)
 
     def store_status(self):
         self.status_file.seek(0)
+        self.status_file.truncate()
         self.status.position = self.log_file.tell()
+        logger.debug("status.position: %s" %(self.status.position))
         self.status_file.write(str(self.status.position) + "\n")
         self.status_file.seek(0)